Drop-cover check



H. A. ARNOLD.

DROP COVER CHECK. I APPLICATION FILED yAPR. I2, |922. 1,425,568. Patented Aug. 15, 1922.

2 SHEETS-SHEET I.

' atroz wat* H. A. ARNOLD.

DROP COVER CHECK.

APPLICATION FILED APR. 12, |922.

l',425,568. Patented Aug. 15, 1922.

2 SHEETS-SHEET 2.

invento/o n aHaz/ro d A. Arf/da.

UN'E@ STATES HAROLD A. ARNOLD, 0F LENOBJA, KANSAS.

DROP-COVER CHECK.

Application led April 12, 1922.

T 0 @ZZ cro/10m t may concern Be it known that l, Hi-iRoLD A. ARNOLD, a citizen of the United States, residing at Lenora, in the county of Norton and Statel of Kansas, have invented certain new and useful Improvements in a Drop-Cover Check, of which the following' is a specification.

The present invention relates to a drop cover check and has for its principal object to provide a cover supporting and checking means for retaining in open position, and checking or controlling the closing action of a top or cover for talking machines, music boxes, and similar cabinets.

Another important object of the invention is to provide means of this nature which will be extremely simple and eiiicient in construction, reliable in operation, inexpensive to manufacture, and well adapted to the purpose for which it is designed.

lVith the above and numerous other objects in view, the invention resides in certain novel features of construction, and the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a vertical section through a cabinet and cover therefor showing my invention attached thereto,

Figure 2 is an enlarged horizontal section taken on the line 2-2 of Figure 1 looking in the direction of the arrow,

Figure 3 is an elevation of the cylinder and associated elements,

Figure 4 is a vertical section through the cylinder, and

Figure 5 is a disassembled perspective of the catch mechanism.

Referring to the drawings in detail, it will be seen that 1 designates an ordinary cover which is hinged at 2 to the cabinet 3. lA supporting rod 4 is pivoted to the cover at 5 and its lower end passes through a horizontally disposed guide plate 6 provided with the T-shaped slot 7 and attached to the interior of the cabinet by the ange 7 extending Hush with the inner face of its side wall and fixed thereto by the screws 8. A check cylinder 9 is suitably mounted upon the inner face of the side wall of the cabinet 3 below the plate 6 preferably by having the crossbar 10 fixed thereto by the screws 11. This cylinder 9 consists of a guide portion 12 and chambers 13 and 14,

Specification of Letters Patent.

Patented Ang, 15, i922.

Serial No. 551,855.

the chamber 14 being muchlarger in area than the chamber 13. These chambers are separated by a partition 15 having' a series of apertures 17 therein which vary in size, the largest thereof being situated adjacent the top of the partition while the others progressively decrease in size, the lowest aperture being the smallest. A valve opening 18 is disposed inthe bottom of the chamber 13 communicating with the chamber 14 and is normally closed by a ball check valve 19. The plunger 2O is slidable through the guides 12 and into the main chamber 13. The chamber 13, when the plunger 20 is in a raised position is filled withoil or other liquid and as this plunger 2O is forced downwardly the oil is forced through the apertures into the larger chamber 14 and the speed with which the oilwill flow fromthe chamber 13 decreases as the kplunger y20 lowers since as it passes by the apertures 17 they are closed and they grow smaller toward the bottom end'. |The supporting rod 4 is pivoted in the slot 22 at the upper vend of the plunger '20 and it will therefore be seen that the weight of the cover will tend .j

to push the plunger downwardly in the cylinder and that the speed with Vwhich the cover initially starts will be comparatively faster than that at which it willbemoving as it approaches the top of the cabinet. n

An inverted U-shaped l'frame 23v passes through the upper end of the plunger 20 and is provided with offset terminals 24'to which kare attached the helical springs 25 the upper ends of which are attached to the hooks 26 supported on the cross bar 27 attached to the cylinder 9 and also to the` side wall of the cabinet 3. These springs 25 tend to raise the inverted U-shaped member 23 and therefore tend to retard the downward movement of the plunger 20.

In order to hold the cover 1 in a raised position a check mechanism is provided which consists in a pivoted locking member 29 which consists of the main bar 30 which is pivoted at 31 beneath the plate 6 and is provided with an actuating arm 32 extending at right' angles therefrom adjacent its pivoted end and terminating in an offset apertured lip 33. The other end of the rod 30 is provided with a guide arm 34 having an arcuate slot 36 therein through which projects a pin 37 depending from the plate 6 whereby the pivotal movement of the member 29 is limited. A depending lip 38 is disposed on the terminal of the guide arm 3ft and a spring 39 is attached thereto and fastened to the pin 40 lined to the plate 6. As will be noted in Figure 2 this spring 39 normally retains the locking member 29 in a position whereby the bar 30 extends transversely across the auxiliary portion e2 of the T-shaped slot 7 so that the luge?) onthe supporting member 4 will rest thereon. In order to release the locking member 29,` a `push rod il is slidably mounted through an opening 5in the front of the cabinet and a push button 46 is provided on itslouter terminal.

The inner terminal thereof passesthrough the aoertured `lip 33 and a cross pin 47 is mounted adjacent this end which is adapted to engage this apertured lip 33 when the push rod is moved, inwardly thereby pivoting'the locking.memberQ9` andreleasing the bar 3() from engagement with the lug i3 and allowing the `supporting member 4 to move downwardly because of the weight of the cover l. j .f

It is vthought j that the operation of the `device will now bereadily understood withouta morek detailed explanation and itis to be understood that numerous changes in the details oit construction and in theV combination and arrangement oi parts'may be resorted to without departing `from the spirit or the invention as hereinafter claimed."

Having thus described my invention what lclaim as new is i .j l.l Means for checking the closing movement etal cabinetjcover @comprising a cylinder inclu linga guide portion, a maincham- `bei", an auxiliary chamber, a partition between the t o Chambers "provided with a pluralityot openings, a@ plunger' in the cylinder `movable inthe main chamber, a supporting member' 'connecting the plunger with thecovergand a catch adjacent the supporting member for engagement therewithffor holding the cover in araised icosition.`

2'. Means orcheclring the closing movementof a cabinet cover comprising a cylinder `including a guide portion, a main chamber, an auxiliary chambenfa partition between the two chambers provided with a pluralityor openings, a plunger in the cylinder movable in the main chamber., a supporting` member connecting the yplun,( ;er with the cover, supporting member for engagement therewith 'for holding the cover tion, means operable Yfrom the outside of the cabinet for releasing the supporting member from engagement with the catch.

3. Means for checking the closing movement of a cabinet cover comprising a cylinder, a Vplunger in the cylinder, a supporting member connecting thel plunger with the cover, a horizontally disposed plate having a T-shapedlslot therein Jfor receiving the supporting member, a member passable through the auxiliary portion of the T-shaped slot in the plate, a locking member pivoted to the plate, means for ynormally holding the locking member in a position sothat it will engage the lug on the supporting member and hold the'same in a raised position, and means operable from `the outside ofi the cabinet for releasing said locking member Ylirom engagement with the lug so `as to allow the cover to move to a closed position. j j

4. Means for checking the vclosing movement oit a cabinet covercomprising a cvlinder,a plunger inthe cylinder, a supporting member connecting the plunger with the cover, an inverted U-shaped member attached intermediate its ends to the upper end of the plunger', springs attached to the' terminals ci* the U-shaped member, means for supporting the other ends of the springs, and a catch adjacent the supporting member for holding it in a raised position.

ln testimony whereof l aili'x my signature in presence or two witnesses.

HAROLD A; ARNOED.

j `Witnesses:

H. SWENDENER, JOHN G. RnoH'riEN.

lug on the supportingv in a raised posi- 

